(historical) A gun fired by means of an electric current, formerly used to signal a specific time of day.

(historical) A gun triggered by a tripwire near a grave, intended to deter body snatchers.

(nautical, orienteering, search and rescue) A firearm designed to shoot a rope across a distance, usually used to pass lines from one ship to another.

(firearms) A crude homemade weapon that fires a projectile.

(astronautics) An EVA astronaut space maneuvering propulsion unit, a handheld gas jet device, connected to a reservoir.

(US, firearms, slang) Synonym of Saturday-night special

Overly fond of and inclined to use guns and gun violence.

(nautical) A small gun, on a whaler, that fires harpoons

A tool, either manual or electric, for picking tumbler-based locks by applying force to the pins.

(artillery) A former type of canon the construction of which included an internal layer of wire windings.